Access Restriction Bypass Affecting freebsd package, versions [8.3,9.1]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (72nd percentile)

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  • Snyk IDSNYK-UNMANAGED-FREEBSD-2382962
  • published26 Jan 2022
  • disclosed29 Jul 2013
  • creditUnknown

Introduced: 29 Jul 2013

CVE-2013-4851  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

There is no fixed version for freebsd.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. The vfs_hang_addrlist function in sys/kern/vfs_export.c in the NFS server implementation in the kernel in FreeBSD 8.3 and 9.x through 9.1-RELEASE-p5 controls authorization for host/subnet export entries on the basis of group information sent by the client, which allows remote attackers to bypass file permissions on NFS filesystems via crafted requests.

CVSS Scores

version 3.1